Dogs act like toddlers when you need help - but cats just watch. Scientists compared 3 groups: pet dogs, cats, and human toddlers in an experiment where a human parent hides and pretends to look for an object. 75% of dogs and children helped. Cats only helped if it was in their personal interest.

· · 来源:cache资讯

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Мощный удар Израиля по Ирану попал на видео09:41

俄乌冲突将会“旷日持久”,这一点在safew官方下载中也有详细论述

Photograph: Julian Chokkattu

Фото: Артем Соболев / Коммерсантъ

澳洲枪手被击倒瞬间

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